Process and apparatus for saturating yarn rolls with dyes



Feb. 12, 1929.

A. H. JUNKERS PROCESS AND APPARATUS FOR SATURATING YARN ROLLS WITH DYES Filed Aug. 20, 1925 Patented Feb. 12, 1929.

UNITED STATES PATENT OFFICE.

ADOLF H. JUNKERS, OF RHEYDT, GERMANY.

PROCESS AND APPARATUS FOR- SATUBATING YARN ROLLS WITH DYES.

Application filed August 20, 1925, Serial No. 51,454, and in Germany June 14, 1924.

This invention relates to improvements in processes of and apparatus for saturating yarn rolls with dye, the object being to provide an improved process and apparatus whereby the roll is saturated with the dye in minimum time, as the dye is everywhere introduced to the roll and the necessary pressing and extending of each part of the yarn is attained, which process is especially adapted for the complete saturation of the yarn cross section with dyes. For this purpose the yarn is wound onto a sleeve of relatively large diameter with an inner cross section, which'is suflicient for forcing more dye through the yarn than is needed; the corresponding large circumference of the roll sleeve is able to .receive a great number of perforations, so that all the yarn parts are uniformly saturated by the dye. The end faces of the rigid sleeves are so constructed as to tightly fit against plane surfaces. In the said pressing device the windings are so confined on both sides, that the dyes cannot laterally escape. Because of the strong pressure the yarn windings press each other, and this may still be favored by using intermittent pressure. It is further necessary to saturate the outer yarn windings upon which no favorable pressure reaction by surrounding windings is exercised. This is done by repeatedly pressing the dye radially from the inner to the outer circumference I through the yarn roll and kneading the outer circumference of the yarn roll during said pressing.

In the drawing an apparatus for the realization of the said process is shown,

Fig. 1 is a longitudinal section, and

Fig. 2 is a cross section.

On a roll sleeve a, having a large diameter with respect to the diameter of the whole yarn roll, the yarn windings b are arranged for saturation. The roll by a screw 0 is so pressed between two discs d, that the end faces of the sleeve and of the winding are tightly covered. The dye penetrating from the sleeve to the winding is thereby prevented from flowing out sidewise and is constrained to stream radially through till the windings.

According to Fig. lrfor the introduction of the dye a hollow shaft 6 is so arranged, that it supports on one end the roll and on the other end a gye supply pipe. The shaft 6 is slowly turne during the dye pumping operation by means of worm gears g. h, respectively on the shaft e and a power shaft 2'. At the same time the outer circumference of the roll may be manually kneaded. As shown in Fig. 2, a roller f is provided on a swingable hand lever, so as to be pressed by hand against the yarn roll, and hereby a good saturation of the outer winding can be attained; The super-flu ous dye coming out from the circumference of the roll falls into a vat g, and from there it flows back to the pump.

The vat has a drainage opening k which in practice may be closed by a plug.

My improved process can be carried out in a very short space of time and enables very concentrated dye to be used without waste. No more dye than is needed for the treatment of each roll need be employed, and my process enables uniformity of the dyed product to be secured.

The apparatus is cheap and simple in construction and in practice several such machines can be operated by one man.

I claim:

1. A process for saturating yarn rolls with dyes, consisting in forcing the dye radially from the inner to the outer circumference through the yarn roll and simultaneously kneading the outer circumference of said yarn roll.

2. An apparatus for saturating yarn rolls with dyes, comprising in combination a hollow perforated sleeve adapted to support a yarn roll, a lever having means arranged to e pressed against the outer circumference of said yarn roll, means for supporting said roll sleeve and said lever rotatably with respect to each other, a round roll sleeve axis. and means for feeding dye to the interior of said sleeve. v

3. An apparatus for. saturating yarn rolls with dyes, comprising in combination a hollow perforated sleeve adapted to support a yarn roll, a lever having means arranged to be pressed against the outer circumference of said yarn roll, a hollow rotatable sh aft supporting said sleeve, and means for feeding dye to the interior of said hollow shaftand sleeve.

4. An apparatus for saturating yarn rolls with dyes, comprising in combination a hollow perforated sleeve adapted to support a yarn roll, a lever, a roller on said lever, said lever being arranged to press said roller against the outer circumference of said yarn. roll, means for supporting said roll sleeve and said lever rotatably with respect to each other around the roll sleeve axis, and means for feeding dye to the interior of said sleeve.

5. An apparatus for saturating yarn rolls with dyes, 'omprising in combination a hollow perforated sleeve adapted to support a yarn roll, a disc on said sleeve, means for feeding dye under pressure to the interior of said sleeve and through said disc, a second disc fitting to the end face of said sleeve, means for pressing said second disc against said end face, means for rotating said sleeve and means arranged to be pressed against the outer circumference of said yarn roll.

6. An apparatus for saturating yarn rolls with dyes, comprising in combination a hollow perforated sleeve adapted to support a yarn roll, a disc on said sleeve, a hollow shaft axially projecting from said sleeve and said disc, a casing forming a vat below said sleeve, a bearing on said caslng for said shaft, a second disc fitting to the end surface of said sleeve, an arm on said casing, extending to the end face of said sleeve, a pressure screw in said arm for pressing said second'disc against said sleeve end, means for rotating said shaft and sleeve, and means arranged to be pressed against the outer circumference of said yarn roll.

In witness whereof I aflix my signature.

ADOLF H. JUNKERS. 

